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t56 tranny

This is a discussion on t56 tranny within the LT1 forums, part of the Vehicle Specific category; i am working on building my lt1 hoping to get 400-450hp when its all said and done will my stock ...

  1. #1
    Junior Member
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    black
    94 z28

    t56 tranny

    i am working on building my lt1 hoping to get 400-450hp when its all said and done will my stock t56 handle that kind of power?? if not what can i do to it to beef it up??

  2. #2
    Senior Member 5.0THIS's Avatar
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    red
    95 Z28

    Yes, it will. Power isnt really what is going to kill it (to a certain point). If you powershift it and beat the crap out of it on a regular basis, you could break it with less power. If this is a street car that doesnt get driven really hard, then you should be ok. If you're looking for a margin of safety, there are different levels you can take a T56 to. You can start with specific upgraded internals as synchros, shift forks, etc, and you can go all the way up to spending the big bucks on new gearsets, bigger input and output shafts, etc. You can spend 5000$+ on one if you really want to.

  3. #3
    Member qwk93ta's Avatar
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    00 WS6

    I have about 375 RWHP and my T-56 has NO issues with that kind of power. I would get a good aftermarket shifter.

  4. #4
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    Arctic White
    2001 Firebird Formula

    a stock t56 will routinely handle 450 lb-ft of torque.....your good to go, just dont beat the f*ck out of it lol

  5. #5
    LT1KING GOODZ/BADZ's Avatar
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    Black/Black
    96 Vert Z28-RIP/94 TT Z28

    Definitely get an aftermarket shifter! With my stock one I frequently missed 3rd while powershifting. Once I put in my Pro 5.0, it was a huge difference. For that power range though you should be fine with a stock T-56 (sans the shifter) but if there was anything I would change, it would be the synchros. The stock ones are made with paper in them, some carbon fiber ones would be good. You probably won't need the upgrade though.
    2 heads are better than 1!

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